Why the Frigidaire EPTWFU01 & PAULTRA2 Combo Pack Is the Most Comprehensive Filtration Upgrade for Your Frigidaire Refrigerator

Most Frigidaire refrigerator owners know they need to replace the water filter every six months. Fewer realize that the air filter inside the same refrigerator needs replacing on exactly the same schedule, and that running a fresh water filter alongside an exhausted air filter means one filtration system is working at full capacity while the other is not. The Frigidaire EPTWFU01 PureSource Ultra II water filter and PAULTRA2 Pure Air Ultra II air filter combo pack solves both at the same time, delivering the most comprehensively certified water filtration available in the Frigidaire lineup alongside activated carbon air purification for compatible latest generation Frigidaire refrigerators, at the best price EPTWFU01 PAULTRA2 combo pack available at Refrigerator Filters Shop.

What Makes the EPTWFU01 & PAULTRA2 Combo Pack Different from Other Frigidaire Combos

The Frigidaire filter lineup includes multiple combo pack options covering different refrigerator model generations. The EPTWFU01 and PAULTRA2 combo pack stands apart from the other options for one specific reason: the EPTWFU01 PureSource Ultra II is the only Frigidaire refrigerator water filter that carries NSF 401 certification in addition to NSF 42 and 53.

Every Frigidaire water filter in the current lineup carries NSF 42 and 53 certification covering chlorine taste and odor reduction and health-related contaminant reduction including lead and cysts. The EPTWFU01 goes further with NSF 401 certification, which covers select emerging trace compounds that NSF 42 and 53 alone do not address. This additional certification layer makes the EPTWFU01 the most comprehensively certified water filtration option available for compatible latest generation Frigidaire refrigerators and the primary reason the EPTWFU01 and PAULTRA2 combo pack is the recommended replacement for households that want the broadest independently verified contaminant reduction available from their refrigerator filter.

What the Frigidaire EPTWFU01 PureSource Ultra II Water Filter Actually Does

The Frigidaire EPTWFU01 PureSource Ultra II is an NSF 42, 53, and 401 certified replacement water filter for select latest generation Frigidaire refrigerator models. It uses activated carbon block technology to reduce contaminants from dispensed water and ice before they reach your glass.

Understanding the three certification levels on the EPTWFU01:

NSF 42 certification confirms through independent laboratory testing that the EPTWFU01 reduces chlorine taste and odor to below the NSF standard threshold. Chlorine is added to municipal water supplies as a disinfectant. While essential for public health, chlorine and its byproducts are the primary reason unfiltered or under-filtered refrigerator water tastes flat or slightly chemical. A functioning EPTWFU01 strips chlorine compounds from the water before they reach the dispenser, which is why water from a recently replaced filter tastes measurably cleaner than water from one running past its rated service life.

NSF 53 certification confirms independent laboratory verification of health-related contaminant reduction including lead and cysts. Lead enters household water supplies primarily through aging service pipes and plumbing fittings rather than at the treatment plant, making it a concern in older homes regardless of municipal water quality. Cryptosporidium and Giardia are microscopic parasites that can survive conventional water treatment and represent a health risk when present. NSF 53 certified reduction on the EPTWFU01 means both claims have been independently tested and verified to nationally recognized standards.

NSF 401 certification is where the EPTWFU01 separates itself from every other Frigidaire water filter. NSF 401 covers select emerging trace compounds including certain personal care product residues and other substances increasingly detected in municipal water supplies that standard NSF 42 and 53 certification does not address. Whether these specific compounds are present in your local water supply depends on local conditions, but for households that want the broadest available certified coverage from their refrigerator filter, the NSF 401 certification on the EPTWFU01 represents a meaningful additional layer of independently verified protection.

The EPTWFU01 is rated for 200 gallons or 6 months, whichever comes first. Alternative part numbers 242069801 and EWF02 refer to the same EPTWFU01 PureSource Ultra II filter format.

What the EPTWFU01 reduces:

Chlorine taste and odor through NSF 42 certified activated carbon block filtration, lead and cysts through NSF 53 certified contaminant reduction, select emerging trace compounds through NSF 401 certification, VOCs and sediment through activated carbon adsorption, and particulates affecting water clarity and ice appearance.

What the Frigidaire PAULTRA2 Pure Air Ultra II Air Filter Actually Does

The Frigidaire PAULTRA2 Pure Air Ultra II is a replacement air filter designed for compatible Frigidaire refrigerator models. It uses activated carbon filtration to reduce food odors and ethylene gas inside the fresh food compartment continuously throughout its 6 month service life.

Why the PAULTRA2 matters as much as the EPTWFU01:

Most buyers understand intuitively why a water filter matters. The air filter is less obvious but equally important for a different reason.

Activated carbon inside the PAULTRA2 contains an enormous number of microscopic pores that create a massive effective surface area within a compact cartridge. As cabinet air circulates across this surface, odor-causing molecules and ethylene gas molecules bond to the carbon through adsorption. The carbon surface gradually fills with captured molecules until adsorption capacity is reached and the filter can no longer capture new compounds effectively.

The critical compound the PAULTRA2 targets is ethylene gas. Ethylene is a colorless, odorless gas released naturally by ripening fruits and vegetables as a biological signaling mechanism. In an outdoor environment ethylene disperses harmlessly. Inside a closed refrigerator cabinet it accumulates, triggering accelerated ripening and spoilage across everything stored in the same space. High ethylene-producing items including apples, pears, avocados, and stone fruits accelerate the deterioration of nearby ethylene-sensitive produce including leafy greens, broccoli, berries, and cucumbers through this mechanism.

A functioning PAULTRA2 Pure Air Ultra II air filter keeps ethylene levels low inside the cabinet, slowing the ripening feedback loop and meaningfully extending the usable life of stored produce. A household that replaces the PAULTRA2 on schedule typically notices produce lasting noticeably longer between grocery trips compared to one running an exhausted or absent air filter.

The PAULTRA2 reaches adsorption capacity based on time and exposure rather than measurable throughput. This is why it carries a time-based replacement interval of 6 months rather than a gallon-based threshold. Waiting for odors to become obvious before replacing means the filter has already been past its effective service life for some time. Alternative part numbers 242047805 and EAFCBF refer to the same PAULTRA2 Pure Air Ultra II filter format.

Is the EPTWFU01 & PAULTRA2 Combo the Right Combo Pack for Your Frigidaire Refrigerator?

Confirming the correct combo pack requires checking two part numbers rather than one. Both the water filter and air filter must match the part numbers on the existing installed filters in your refrigerator.

Confirming the water filter: If your existing water filter label shows EPTWFU01, PureSource Ultra II, 242069801, or EWF02, the water filter component of this combo is confirmed.

Confirming the air filter: If your existing air filter label shows PAULTRA2 or Pure Air Ultra II, the air filter component of this combo is confirmed and the EPTWFU01 and PAULTRA2 combo pack is the correct replacement for your unit.

If the labels show different codes: The Frigidaire filter lineup includes three water filter options and three air filter options covering different model generations. If your water filter shows ULTRAWF and your air filter shows PAULTRA, the ULTRAWF and PAULTRA combo is the correct replacement. If your water filter shows FPPWFU01 and your air filter shows PAULTRA2, the FPPWFU01 and PAULTRA2 combo kit is the correct replacement. Always confirm both part numbers before ordering.

If the labels are worn or unreadable: Locate the refrigerator model number on the sticker inside the fresh food compartment door frame and use it to cross-reference the correct filter codes before ordering. Alternatively contact the Refrigerator Filters Shop support team at (646) 655-0227 or info@refrigeratorfilters.shop for assistance confirming the correct combo pack for your model before you buy.

How the EPTWFU01 & PAULTRA2 Combo Compares to the ULTRAWF & PAULTRA Combo

The most common comparison buyers make is between the EPTWFU01 and PAULTRA2 combo and the ULTRAWF and PAULTRA combo. Understanding the distinction helps confirm which is correct for your refrigerator.

The ULTRAWF and PAULTRA combo covers earlier generation Frigidaire refrigerator models. The ULTRAWF water filter carries NSF 42 and 53 certification. The PAULTRA air filter is the earlier generation Pure Air Ultra format.

The EPTWFU01 and PAULTRA2 combo covers latest generation Frigidaire refrigerator models. The EPTWFU01 water filter carries NSF 42, 53, and 401 certification, adding emerging trace compound coverage not present on the ULTRAWF. The PAULTRA2 air filter is the updated Pure Air Ultra II format.

Neither combo is superior in a general sense. The correct combo is simply the one that matches the part numbers on the existing installed filters in your specific refrigerator. If your refrigerator uses the ULTRAWF and PAULTRA, that is the correct replacement. If it uses the EPTWFU01 and PAULTRA2, this combo pack is the correct replacement. The EPTWFU01 and ULTRAWF are not interchangeable and neither are the PAULTRA2 and PAULTRA, regardless of the certification level difference between the water filter options.

The Value of Buying the EPTWFU01 & PAULTRA2 Combo Pack

Buying the best price EPTWFU01 PAULTRA2 combo pack rather than ordering each filter separately delivers savings on every replacement cycle. Since both filters share a 6 month service life, most households replace them twice per year. The combo pack saving applies on every order and accumulates meaningfully over two to three years of consistent replacement cycles.

Beyond the direct filter cost, the EPTWFU01 covers 200 gallons of NSF 42, 53, and 401 certified filtered water per cartridge, the equivalent of approximately 400 standard plastic water bottles. At any bottled water price point, certified refrigerator filtration represents a fraction of the per-gallon cost of buying bottled water while delivering independently verified contaminant reduction that most bottled water sources do not match at the NSF 401 level.

The PAULTRA2 adds produce freshness value on top of that by reducing ethylene gas buildup that accelerates spoilage between grocery trips. Combined, the EPTWFU01 and PAULTRA2 combo pack delivers the most comprehensively certified Frigidaire refrigerator filtration available at the best price EPTWFU01 PAULTRA2 combo pack at Refrigerator Filters Shop, with free shipping across the USA and a 30 day easy return and refund policy on every order.

When to Order Your Next EPTWFU01 & PAULTRA2 Combo Pack

Order a fresh best price EPTWFU01 PAULTRA2 combo pack replacement when any of the following apply:

6 months have passed since the last replacement, the primary trigger for both the EPTWFU01 water filter and PAULTRA2 air filter regardless of other factors.

The EPTWFU01 water filter has reached 200 gallons, households with higher water consumption may reach the 200 gallon EPTWFU01 water filter service life threshold before the 6 month period ends.

Dispensed water develops a flat taste or noticeable chemical odor, a sign the EPTWFU01 carbon block is no longer reducing chlorine and contaminants at full NSF 42, 53, and 401 certified capacity.

Water or ice takes on a chlorine taste, a reliable indicator the EPTWFU01 PureSource Ultra II water filter service life has been exceeded for chlorine reduction.

Persistent food odors develop inside the refrigerator between cleanings and after removing strongly scented food items.

Stored produce is spoiling faster than expected, ethylene gas buildup from an exhausted PAULTRA2 Pure Air Ultra II air filter is accelerating ripening in nearby fruits and vegetables.

The filter indicator light activates on the Frigidaire control panel, order a fresh best price EPTWFU01 PAULTRA2 combo pack replacement promptly.

Shop the Best Price EPTWFU01 & PAULTRA2 Combo Pack at Refrigerator Filters Shop

Ready to order? Get the Frigidaire EPTWFU01 and PAULTRA2 combo pack at the best price with free shipping across the USA and a 30 day easy return and refund policy on every order. Shop now and have both filters delivered fast directly to your door.

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FAQs

How do I know if my Frigidaire refrigerator uses the EPTWFU01 and PAULTRA2 or the ULTRAWF and PAULTRA?

Check the part numbers on the existing installed water filter and air filter in your refrigerator. If they show EPTWFU01 and PAULTRA2, this combo is the correct replacement. If they show ULTRAWF and PAULTRA, the ULTRAWF and PAULTRA combo is the correct replacement. Contact the Refrigerator Filters Shop team at (646) 655-0227 if you need help confirming before ordering.

Is the best price EPTWFU01 PAULTRA2 combo pack cheaper than buying each filter separately?

Yes. The best price EPTWFU01 PAULTRA2 combo pack at Refrigerator Filters Shop is priced lower than ordering the EPTWFU01 water filter and PAULTRA2 air filter as separate purchases. With both filters sharing the same 6 month service life the combo pack is the most convenient and cost-effective option for compatible latest generation Frigidaire refrigerator models.

What does NSF 401 certification on the EPTWFU01 actually mean for my household?

NSF 401 is an independent certification confirming the EPTWFU01 has been tested and verified to reduce select emerging trace compounds not addressed by NSF 42 and 53 alone. Whether these specific compounds are present in your water supply depends on local conditions. The EPTWFU01 is the only Frigidaire refrigerator water filter that carries this additional certification level.

How quickly will my EPTWFU01 PAULTRA2 combo pack order arrive?

Refrigerator Filters Shop processes orders fast with free shipping across the USA. Contact the support team at info@refrigeratorfilters.shop or (646) 655-0227 for specific delivery time estimates for your location.

What if I need to return the EPTWFU01 PAULTRA2 combo pack?

Every order at Refrigerator Filters Shop is covered by a 30 day easy return and refund policy. Contact info@refrigeratorfilters.shop or call (646) 655-0227 to arrange a return or exchange if needed.

Can I replace just the EPTWFU01 or just the PAULTRA2 instead of buying the combo?

Yes. Both are available to buy separately from Refrigerator Filters Shop. The best price EPTWFU01 PAULTRA2 combo pack is the recommended option when both filters are due at the same time, which for most households falls at the six month mark.